Electron-positron pair production as a probe of chiral symmetry in a hot QCD plasma |
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Authors: | J. Kapusta |
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Affiliation: | School of Physics and Astronomy, University of Minnesota, Minneapolis, MN 55455, USA |
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Abstract: | Chiral symmetry in the high-temperature plasma phase of QCD is consistent with at least three qualitatively different quark dispersion relations. The rate for , with zero total momentum of the e+e? pair in the plasma rest frame is direct measure of the quark dispersion relation. For the three plausible dispersion relations the rates differ by orders of magnitude when the e+e? invariant mass M < 2T. |
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